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Kerr 介质中三能级原子与双模场非共振相互作用的量子统计性质

陶向阳 刘金明 刘三秋 傅传鸿

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Kerr 介质中三能级原子与双模场非共振相互作用的量子统计性质

陶向阳, 刘金明, 刘三秋, 傅传鸿

QUANTUM STATISTIC PROPERTIES OF NON-RESONANCE INTERACTION BETWEEN A THREE-LEVEL ATOM AND TWO MODE CAVITIES WITH KERR MEDIUM

TAO XIANG-YANG, LIU JIN-MING, LIU SAN-QIU, FU CHUAN-HONG
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  • 研究了Kerr介质中双模场与V型三能级原子的非共振相互作用. 对Cauchy-Schwartz不等式的研究表明,在两模场失谐量相等(δ1=δ2)条件下,当初始场强ξ一定而两模场的光子数差q减小时,场的非经典相关程度加强;q一定而ξ增大时,场的非经典相关程度减弱. 当Δδ=|δ2-δ1|≠0且q和ξ的取值一定时,随介质常量x的增大,光场两模间的非经典相关程度减弱,且Δδ的大小对这种非经典相关程度的减弱有重要影响. 对场的
    We have studied the non-resonance interaction between a V-type three-level atom and two-mode cavity with Kerr medium. The results show that if the detunings of the two-mode cavities are equal (δ1=δ2), when initial strength ξ of the two cavities remains unchanged and photon difference q of the two mode cavities is decreased, the non-classical coherence degree between the two mode cavities is increased; when q remains unchanged and ξ is increased, the non-classical coherence degree between the two mode cavities is decreased. When Δδ=|δ2-δ1|=0 and q and ξ remain unchanged, the non-classical coherence degree is decreased with the increase of Kerr effect, and the value of Δδ has an importance influence on the non-classical coherence degree. The results also show that when δ1=δ2, the second-order coherence degree of the cavity 1 shows g211222222>1. On the other hand, the amplitude evolution of the second-order coherence degree of two-mode cavity is decreased due to the influence of Kerr effect.
    • 基金项目: 江西省自然科学基金(批准号:971216)资助的课题.
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出版历程
  • 收稿日期:  1999-10-10
  • 修回日期:  2000-01-21
  • 刊出日期:  2000-04-05

Kerr 介质中三能级原子与双模场非共振相互作用的量子统计性质

  • 1. 江西师范大学物理系,南昌 330027
    基金项目: 

    江西省自然科学基金(批准号:971216)资助的课题.

摘要: 研究了Kerr介质中双模场与V型三能级原子的非共振相互作用. 对Cauchy-Schwartz不等式的研究表明,在两模场失谐量相等(δ1=δ2)条件下,当初始场强ξ一定而两模场的光子数差q减小时,场的非经典相关程度加强;q一定而ξ增大时,场的非经典相关程度减弱. 当Δδ=|δ2-δ1|≠0且q和ξ的取值一定时,随介质常量x的增大,光场两模间的非经典相关程度减弱,且Δδ的大小对这种非经典相关程度的减弱有重要影响. 对场的

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